An electrical outage has closed the Roslyn Viaduct in both directions, Nassau police said.

As of 4:30 p.m., traffic was being diverted from Northern Boulevard to Old Northern Boulevard.

Police advised motorists to use alternate routes.

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Dangerous Roads: Ticket enforcement ... Knicks vs. Spurs preview ... Weather: Warm up coming ... Get the latest news and more great videos at NewsdayTV

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Dangerous Roads: Ticket enforcement ... Knicks vs. Spurs preview ... Weather: Warm up coming ... Get the latest news and more great videos at NewsdayTV

SUBSCRIBE

Unlimited Digital AccessOnly 25¢for 6 months

ACT NOWSALE ENDS SOON | CANCEL ANYTIME